It Vorspiel

At the outskirts of town in a mansion, which is rumoured to house devils, live the masters of the household: the young miss (master?) Lily and the strange young master (a NEET) It. We follow them as they frequently carry out strange requests, request which normal humans cannot settle themselves.

Yet again, today, a young girl that wishes to find her black cat has paid a visit…

(Source: Aqua Scans)